12444215234 has 12 divisors (see below), whose sum is σ = 20517528822. Its totient is φ = 5656461360.

The previous prime is 12444215233. The next prime is 12444215257. The reversal of 12444215234 is 43251244421.

It can be written as a sum of positive squares in only one way, i.e., 7295722225 + 5148493009 = 85415^2 + 71753^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12444215234.

It is not an unprimeable number, because it can be changed into a prime (12444215233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25710947 + ... + 25711430.

Almost surely, 2^12444215234 is an apocalyptic number.

12444215234 is a deficient number, since it is larger than the sum of its proper divisors (8073313588).

12444215234 is a wasteful number, since it uses less digits than its factorization.

12444215234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51422401 (or 51422390 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

Adding to 12444215234 its reverse (43251244421), we get a palindrome (55695459655).

The spelling of 12444215234 in words is "twelve billion, four hundred forty-four million, two hundred fifteen thousand, two hundred thirty-four".